Making your own face mask? Some fabrics work better than others, a study finds
that people living in coronavirus hot spots cover their face to prevent spread of the coronavirus.
But if you are making your own covering, new research finds that some fabrics are better than others at filtering out viral particles. "You have to use relatively high-quality cloth," Dr. Scott Segal, chair of anesthesiology at Wake Forest Baptist Health in Winston-Salem, North Carolina, said.Face coverings made of fabric, public health experts note, aren't intended to protect wearers from getting sick, but rather, to prevent them from spreading the virus to others.
On the left, researchers used a special filtration test to determine how many small particles were blocked with a variety of masks and fabrics. On the right, a piece of cloth lets light shine through easily, signalling a lower quality fabric.To test various masks and fabrics, the team pumped air through both types of face coverings.
"Our instruments could read down to 0.3 microns, which is about the size of a big virus," Segal said.Sign Up
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